UK universities will usually ask for some kind of recent study evidence, so you may be asked to do a one year Access course in advance of your degree. Mature entry requirements aren't publicised by unis and they generally aren't the same as the ones for school leavers, so the only way to find out is to email the Admissions Office of a few, telling them your background and the degree you're interested in.
Even if you meet the published requirements with older qualifications, you may still need to do more if your last academic study was some years ago.
It may not be a consideration if you can already afford it, but the basic requirement for UK Student Finance funding is that you must have been resident in the UK for three years before the start of your degree. As you've been overseas for seven years, you wouldn't qualify until you'd been back in the UK for three years.